instadomain

Domain registration for AI agents via Stripe or x402 crypto with Cloudflare DNS.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Domain registration for AI agents via Stripe or x402 crypto with Cloudflare DNS.

    How to connect

    How to connect instadomain to Claude

    The server address to paste into Claude settings:

    https://instadomain.fly.dev/mcp/

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect instadomain to ChatGPT

    The server address to paste into ChatGPT settings:

    https://instadomain.fly.dev/mcp/

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect instadomain to Cursor

    The server address to paste into Cursor settings:

    https://instadomain.fly.dev/mcp/

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (12)

    Raw names from tools/list. Only developers need these.

    check_domainCheck if a domain is available for purchase and get its price. Always call this before buying. After showing the price, ask the user two things before proceeding: 1. Confirm they want to purchase at that price. 2. Which payment method they prefer: - "card" / "Stripe" → call buy_domain (opens Stripe checkout in browser) - "crypto" / "USDC" / "x402" → call buy_domain_crypto (autonomous USDC payment, no browser; requires Coinbase Payments MCP or another x402 wallet) - "MPP" / "agent pay" → call buy_domain_mpp (Stripe agent payments via Shared Payment Token, no browser) If the user has Coinbase Payments MCP configured in their session, suggest crypto as the default. Otherwise default to buy_domain (Stripe). Args: domain: The full domain name to check (e.g. "coolstartup.com"). Returns: Dict with availability status, price in cents, and formatted price.
    check_domains_bulkCheck availability of up to 50 domain names in one call. Uses fast RDAP lookups (no pricing). Returns a summary with total/available/taken counts plus per-domain details. Args: domains: List of domain names to check (max 50).
    suggest_domainsGenerate domain name ideas from a keyword and check their availability. Args: keyword: A keyword or short business name (e.g. "taskflow").
    get_domain_statusGet the status of a domain purchase order. Polls the backend every 3 seconds (up to 120 seconds) until the order reaches a terminal state (complete or failed). Args: order_id: The order ID returned from buy_domain (e.g. "ord_abc123").
    request_transfer_codeStart the transfer verification flow by sending a code to the registrant's email. Always call this before get_transfer_code or unlock_domain. Then ask the user to check their email and provide the 6-digit code, then call verify_transfer_code to get a transfer_token. Args: order_id: The order ID of a completed domain purchase.
    verify_transfer_codeVerify the email code and get a transfer token valid for 15 minutes. Call this after request_transfer_code and the user provides their code. Pass the returned transfer_token to get_transfer_code or unlock_domain. Args: order_id: The order ID of a completed domain purchase. code: The 6-digit code from the verification email.
    get_transfer_codeGet the EPP/transfer authorization code for a completed domain purchase. Requires a transfer_token from verify_transfer_code. Args: order_id: The order ID of a completed domain purchase. transfer_token: Token returned by verify_transfer_code.
    unlock_domainRemove the registrar transfer lock. Requires a transfer_token from verify_transfer_code. Args: order_id: The order ID of a completed domain purchase. transfer_token: Token returned by verify_transfer_code.
    renew_domainRenew a domain for 1 additional year. Creates a Stripe checkout session for the renewal payment. Args: order_id: The order ID of a completed domain purchase (e.g. "ord_abc123").
    buy_domainStart the purchase flow for an available domain via Stripe checkout. IMPORTANT: Before calling this tool, you MUST first call check_domain to get the price, then clearly show the user the price and get their explicit confirmation before proceeding. Never call buy_domain without the user seeing and approving the price first. The registrant contact details are required because the domain will be registered in the buyer's name (they become the legal owner). WHOIS privacy is enabled by default, so these details are not publicly visible. Creates a Stripe checkout session. IMPORTANT: After this tool returns, you MUST open the checkout_url by running the shell command `open "<checkout_url>"` (macOS/Linux) so the payment page launches automatically in the user's default browser. Do NOT paste the URL as a link. Tell the user the page has been opened and they can complete payment there. Args: domain: The domain to purchase (e.g. "coolstartup.com"). first_name: Registrant's first name. last_name: Registrant's last name. email: Registrant's email address. address1: Registrant's street address. city: Registrant's city. state: Registrant's state or province. postal_code: Registrant's postal/zip code. country: 2-letter ISO country code (e.g. "US", "GB", "DE"). phone: Phone number in format +1.5551234567. org_name: Organization name (optional, leave empty for individuals). Returns: Dict with order_id, checkout_url, price_cents, and price_display.
    buy_domain_cryptoStart the purchase flow for a domain using USDC crypto payment (x402 protocol). Autonomous two-step payment flow — no browser required: Step 1: Call this tool to reserve the domain and get a pay_url. Step 2: Pay the pay_url using your x402 wallet: - If you have Coinbase Payments MCP: call its x402 payment tool with the pay_url. - Otherwise: run `curl -L <pay_url>` — your x402-enabled HTTP client will handle the 402 handshake and USDC payment on Base automatically. After payment succeeds, call get_domain_status(order_id) to poll until registration is complete (usually under 60 seconds). The registrant contact details are required because the domain will be registered in the buyer's name (they become the legal owner). WHOIS privacy is enabled by default, so these details are not publicly visible. IMPORTANT: Before calling this tool, you MUST first call check_domain to get the price and confirm it with the user. Args: domain: The domain to purchase (e.g. "coolstartup.com"). first_name: Registrant's first name. last_name: Registrant's last name. email: Registrant's email address. address1: Registrant's street address. city: Registrant's city. state: Registrant's state or province. postal_code: Registrant's postal/zip code. country: 2-letter ISO country code (e.g. "US", "GB", "DE"). phone: Phone number in format +1.5551234567. org_name: Organization name (optional, leave empty for individuals). Returns: Dict with order_id, pay_url (full URL to pay via x402), price_usdc, price_cents, network, and USDC contract address.
    buy_domain_mppStart the purchase flow for a domain via Stripe's Machine Payments Protocol (MPP). MPP lets autonomous agents pay with fiat (cards, Link) or stablecoins via Shared Payment Tokens, with no browser checkout. Two-step flow: Step 1: Call this tool to get an order_id and pay_url. Step 2: Make an HTTP GET request to the pay_url with an MPP-enabled HTTP client. The server responds with HTTP 402 + WWW-Authenticate; the client creates a Shared Payment Token and retries with an Authorization header. The server charges the SPT through Stripe and kicks off domain registration. After payment, call get_domain_status(order_id) to poll until complete. Requires: An MPP-compatible client configured to mint SPTs against the server's advertised Stripe Business Network profile. Args: domain: The domain to purchase (e.g. "coolstartup.com"). first_name: Registrant's first name. last_name: Registrant's last name. email: Registrant's email address. address1: Registrant's street address. city: Registrant's city. state: Registrant's state or province. postal_code: Registrant's postal/zip code. country: 2-letter ISO country code. phone: Phone number in format +1.5551234567. org_name: Organization name (optional). Returns: Dict with order_id, pay_url (full URL), price_cents, price_display, network_id, and payment_method_types.